Revolving calendar



P 1941?- L. M. JACKSON ET AL 2,256,433

REVOLVING CALENDAR Filed Feb. 1. 1940 2 Sheets-Sme t l M 0 20 Ira/9 0 WI/IIIIIIIIIIII/ W: Mar W, L M Jack son Sept. 16, 1941. L. M. JACKSON ETAL 2,256,433

REVOLVING CALENDAR Filed Feb. 1, 1940 2 SheerIs-Sheet 2 \g wl Paws/r Am: 1

' W 6 111072119, LMJacfisbzz Patented Sept. 16, 1941 with STATES ATENT OFFIE REVOLVING CALENDAR Leo M. Jackson and William 0. Murphy, Augusta, Ga.

l 1 Claim.

This invention relates to a calendar and it aims to provide a novel construction for perpetual use.

More specifically, it provides boxes, one containing plates for days of the week and the other containing plates for days of the month adapted for sliding movement within the boxes and display at windows on opposite sides of the boxes through turning of the latter, preferably in combination with means to indicate the month and the year.

It is particularly an aim to provide illuminating means for each window of each box with novel means to control energization of the illuminating means of those windows only which are to be observed, such means also aiding to hold the boxes in proper positions to display the Plates.

The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

Figure l is a view in side elevation of the calendar;

Figure 2 is a vertical section taken on the plane of line 22 of Figure 1;

Figure 3 is a vertical section taken on the plane of line 33 of Figure 1;

Figure 4 is a central vertical sectional View taken at a right angle to Figures 2 and 3;

Figure 5 is an enlarged fragmentary elevation of the controlling switch means for the lamp;

Figure 6 is a horizontal section taken on the plane of line 6-6 of Figure 5;

Figure 7 is a vertical section taken on the plane of line 'll of Figure 5, and

Figure 8 is an electric diagram of the lamps and their switches.

Referring specifically to the drawings wherein like reference characters designate like or similar parts, a suitable support or base is provided at I!) from which a central standard I I and outer standards I2 rise, the same being rigidly secured to the base in any suitable manner.

Disposed for individual rotation in the spaces between the standards H and I2 are similar preferably rectangular boxes IS, the same having central trunnions or spindles l4 which are journaled on the standards or bearings H and I2.

Each box l3 at opposite side walls thereof is provided with a window or opening.

ing the same from'Figure 1, forwardly and downwardly to the extent of 180, each day so as to present a plate [6 at the window at the front of one box and a plate I! at the window at the front of the other box. The plates [6 are seven in number, being one for each day of the week and each being so delineated and being arranged -in combination with a partition l8, so as to slide within the box through rotation thereof to properly register the indications of the plates I6 at the windows.

On the other hand, the plates [1 will be of a number to present surfaces for thirty-one days and they co-act with a partition [9 and change positions through turning of the box [3 containing them, such plates ll sliding so as to register their faces at the desired opening.

A lamp 2!! is mounted on each box adjacent each window IS in order to illuminate the same and shades 2| are preferably provided thereover.

As shown in Figure 8, one pole of the lamps 20 is grounded as at 22 while conductors 23 lead from the other poles thereof to terminals in the form of posts 24 arranged in spaced relation. Co-acting with each pair of terminals 26 is an arcuate conductor 25. The terminals 24 are mounted on the boxes l3 and the conductors 25 are mounted on the central post ll. An electric switch is provided at 26 on the base in connected in a power line 21, one side of which is grounded. From the switch 26, conductors 28 pass upwardly through a hollow portion 23 of the central standard I l and thence through lateral openings 29 in the standard II to the conductors 25.

As a result of the construction described, it will be realized that when the boxes are in the position of Figure 1, only those lamps 20 which can be viewed from the front of that figure are illuminated because one terminal 24 of each box only is in contact with the arcuate conductor 25 associated therewith, such conductor being spaced from the other co-acting terminal 24. However, when the boxes are moved forwardly and downwardly 180, in automatically changing the plates Hi to successive days and the plates I? to successive dates, the conductors 25 will be disengaged by the contacts 24 mentioned and will be engaged by the other contacts 24, thus illuminating the windows automatically for the cards of the succeeding days while automatically extinguishing the light at the window for the previous day.

Attention is also called to the fact that the terminals 24 engage the contacts or conductors The boxes |3 are adapted t be te View- 25 with a certain amount of friction, aiding in Wall of the cylinder 33 and is rigidly connected to the drum 30 so that through rotation of the rod 35, the drum 30 Will be rotated to register the proper month indication at window 32, the parts being in sufiicient frictional contact to remain in adjusted positions. a

The year may also be indicated since a drum is provided at 36 provided with year indications 31 peripherally thereof adapted to be registered at an opening 38 in a hollow cylinder 39 located between the other standard I 2 and the post II- and fastened for instance to the former by screws as at 48. An operating rod 4| extends from the drum 36, being jolu'naledin one end wall of the cylinder 39 and in the said standard I2, sufiicient friction being provided between the parts to maintain the drum 36 in its difieren't positions against accidental displacement. Each of the drums 3i] and 36 also preferably has a spindle at its inner end at 42 and 43, journaled in adjacent end walls of the cylinders 33 and 39.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

We claim as our invention:

A calendar 'of the class described having a post member, a box member rotatable on the post member on an axis disposed laterally with respect to the post member, said box member having windows on opposite sides thereof, lamps carried by the box member one to illuminate each window, plates operable within the box member for display at said windows at the same relative location through rotation of the box member, a pair of pin-like terminals extending laterally from one of said members having conductors leading to the lamps, an arcuate conductor extending laterally from the other of said members and concentric with the axis of rotation of the box member, said arcuate conductor being constructed and arranged to frictionally engage with one terminal at a time whereby only one lamp will be illuminated at a time and when at said location, the frictional engagement between the terminals and the arcuate conductor being of a degree to aid.- in holding the box member in its diirerent positions.

LEO M. JACKSON.

WILLIAM C. MURPHY 

